The article is concerned with the features of Lavandula’s
angustifolia vegetative propagation with methods of the
propagation by herbaceous cuttings and of the annual
woody cutting. The dependence of Lavandula’s varieties
Sineva and Vdala rooting of cutting and the cutting grafting
period and the age of the mother plantation was
established. In the fixed years, the rooting rate of cuttings is
58-67%. The maximum annual hardwood cuttings rooting
was observed from the fifth to the seventh year of the
cuttings’ workpiece (75-77%). The highest rooting rate of
green cuttings belonging to Vdala sort (80%) is observed in
the 3-4th years of use the mother plantation. The best result
for rooting rate by the annual woody cutting showed
Lavandula’s mother plantation, which belongs to Vdala
sort and was being cultivated from 3rd to 6th year. The
rooting of Lavandula’s angustifolia cuttings depends on
weather conditions; during drought years the rooting of
green cuttings is considerably reduced. During Lavandula’s
rooting cuttings it is necessary to take into account the
biological characteristics of each variety
The study was performed to genotype some
commercial wine yeast strains using the assay of Interdelta
genomic sequences. Experimental parameters of
PCR to identify were optimized and optimal simplified
method of DNA extraction from dried preparations of
yeast cultures was define. Proven method showed a
high level of resolution and can be used for the
analysis of genetic diversity wine yeast in combination
with SSR-markers
In this article, we have presented a number of modeling experiments to investigate the chemical pollution of brown calcareous soil. It assesses the stability of brown calcareous soil of a nature reserve called Utrish to contamination with heavy metals in biological parameters. Pollution of brown calcareous soil with Cr, Cu, Ni, Pb and oil causes a significant reduction in biological parameters. The degree of reduction depends on the nature of the contaminant and its concentration in the soil. The study showed that the indicators used in the biological condition of the soil, could be recommended for use for diagnosis, monitoring, and regulation of chemical pollution of brown soil. According to the degree of resistance to chemical contamination, the brown soils of Russia form the following series: typical brown - brown carbonate - brown leached
We have investigated the influence of nickel oxide in
the amount 100, 1000 mg/kg of the soil (1, 10 MPC),
combined with the influence of variation magnetic field
with induction of 50, 100 and 650 μT power frequency
of 50 Hz on the enzyme activity and phytotoxity of the
southern chernozem. We have established significant
reduction of enzyme activity of catalase and length of
roots after the influence of the variation of magnetic
fields. Pollution by nickel as an independent factor
caused stimulation of enzyme activity of a
dehydrogenaze and length of roots of radish. The
greatest inhibition of the activity of all indicators was
observed at joint influence of magnetic fields and
pollution by nickel of concentration of 1 maximum
permissible concentration (1 MPC). Enzyme activity of
dehydrogenaze was significantly stimulated (p
Large agricultural load on the steppe landscapes
leads to the transformation of ecosystems and effect
on all their components. Transformation of lands into
laylands leads to a gradual restoration of
anthropogenically disturbed steppe ecosystems.
Studies that focus on the research of comprehensive
processes in the territory of laylands are extremely
relevant today. Herpetobiont fauna is one of the
important characteristics of ecology and biology of
soils. Herpetobiont Coleoptera can serve as
indicators in the study of processes occurring in
postagrogenic soils.The article presents the results of
the study of changes in mesofauna, composition and
structure of complexes of the gerpetobiont
Coleoptera of ordinary black soils in natural
succession series of different-age laylands. We also
evaluated the degree of faunistic similarity of plots
of laylands and allocated dominant species.
Carabidae and Tenebrionidae are the basis of
complex Coleoptera in the investigated laylands. The
article shows that such indicators as the number of
individuals, species, families of beetles and their
dynamic density are depended on the age of the
layland. In addition, the indices of biodiversity
(Margalef and Shannon) and dominance (Simpson)
are also connected with the age of plots of laylands
The article presents the results of laboratory
modeling of gleyisation and its effect on the
biological properties of soils with stagnant regime in
ordinary black soils. Gleyisation is a complex
biochemical process that occurs under oxygen
reduction conditions. Anaerobic microorganisms, the
presence of organic substances, and the constant or
prolonged waterlogging of individual horizons or the
entire soil profile promote gleyisation. Model
experiments revealed that gleyisation increase the
total number of bacteria and suppresses number of
actinomycetes, micromycetes and growth of fungal
mycelium. Gleyisation decreases the activity of
oxidoreductases and increases the hydrolases
activity. In addition, the second content of humus
slightly increases and active acidity (pH) changes to
neutral. Accumulation of large amounts of iron oxide
(II) in soil is revealed
Agricultural use leads to a significant transformation of soils. The first to use the soil for cultivation react most sensitive biological indicators. The purpose of the study - to establish the effect of using the brown forest soils for planting apple orchards for their biological activity, in particular on the humus content, enzyme activity (catalase and dehydrogenase). For the control, we have selected forest area adjacent to arable land. Because of violations of the natural vegetation, there are changes in hydrothermal conditions of the soil. Humidity soil plowed off under forest, while temperatures gets considerably higher. Plowing, compared with the control, revealed significant loss of humus (50%) in the upper most disturbed horizons. In the lower horizons of the values of this index were quite low (1.5%) on all sections of the test. The decline in humus content, as well as overheating and draining soil tillage results in a change of enzymatic activity not only in the surface layers, but also in the whole profile. Due to the movement of the most favorable hydrothermal conditions in the underlying horizons, an increase of enzyme activity over control values in the deeper layers of the soil. The article shows a possibility of the use of biological indicators as indicators of changes in the brown forest soils as a result of agricultural use
We studied the effects of heavy metal pollution on
soil phytotoxicity cities of the Rostov region. The
research objects were the soils of urbolandscape
towns: Taganrog, Novocherkassk, Gukovo, Shakhty,
Azov. The study of the soil pollution with heavy
metals was recorded in Gukovo, Shakhty, Taganrog.
The degree of pollution of the studied cities form the
following row: Gukovo > Shakhty > Taganrog >
basics > Novocherkassk. The research was carried
out in 2011-2015 at the Department of ecology and
environmental Sciences of southern Federal
University. In most cases, there was a direct
correlation between pollutant concentration and the
degree of deterioration of the studied soil properties.
Used biological indicators are informative for
monitoring of urban soils polluted with heavy metal.
The degree of informativity of biological indicators
form the following row: root length > germination
>length of shoots. The results of the study can be
used for monitoring and diagnosing the condition of
contaminated soils, in the assessment of
environmental impact, risk assessment of natural and
synthetic disasters, the development of regional
standards on the content of heavy metals in soil and
in other environmental and industrial activities
There are changes in almost all the properties of
chernozems under locally overmoistening. In
general, changes in the properties and conditions of
chernozems under the development of local wetlands
went in a particular way, regardless of the
peculiarities of soil formation factors and causes
waterlogging. The most noticeable change is the
transformation of physical properties of soil and
organic matter status. According to our research,
more quickly and clearly excessive moisture causes a
change in the physical properties of the soil. There
are changes of the structural state, bulk density and
amount of water-stable aggregates. The significant
change is the transformation of soil organic matter.
There is increasing of total humus content. In a
group composition, the fraction of humic and fulvic
acids increases the share. The humus profile is
stretched. In the majority of cases in investigated
soils was diagnosed secondary salinization. The
periodic waterlogging of the soil also contributes to
the change in the amount of soil carbonates and their
distribution in the profile. Chernozems gradually lose
calcium, the main structurant and humates maker.
Among the most studied soil of Zernogradsky region
in the cationic part of the prevailing spot goes
sodium. In addition, the narrowing ratio of calcium
to magnesium was observed. That is the hallmark of
the aqueous extract of locally overmoistening soils
There has been conducted the analysis of woody plants
quantity in various types of stands in Rostov-on-Don,
as well as the evaluation of their state and the rate of
environmental resistance destabilization.
It has been ascertained that the stands of almost all of
the urban gardening objects are in a salvaged
condition. There have been elaborated
recommendations for enhancement of the stands
inspected